There Are More Rodent Species in South America Than Anywhere Else on Earth. 643 Different Species!

643 extant species on the South American continental plate, 16 families and 159 genera according to the authoritative Mammals of South America, volume 2: Rodents. Total Rodent Diversity in South America. Major Rodent Lineages in South America, in the Neotropics. 50% of all South American mammal species are rodents. South America s rodent fauna is dominated [ ]